02-07-2012, 09:48 PM
So, I had a lucky guess 
Looking at those photos, I'm surprised Philips put their name to such a thing.
Time to get slightly more scientific about it - we need to eliminate the possibility of an earth loop, and we need to determine the exact conditions that cause the hum, and it would be nice to know if it's mechanical or electrical. I'll assume that as you want to fix it, you're willing to learn a bit more about how it works. Audio is pretty straightforward really...
Ultimately, it should be easy enough to fix - either stop that transformer rattling, or look for poorly capacitors.
Looking at those photos, I'm surprised Philips put their name to such a thing.
Time to get slightly more scientific about it - we need to eliminate the possibility of an earth loop, and we need to determine the exact conditions that cause the hum, and it would be nice to know if it's mechanical or electrical. I'll assume that as you want to fix it, you're willing to learn a bit more about how it works. Audio is pretty straightforward really...
Ultimately, it should be easy enough to fix - either stop that transformer rattling, or look for poorly capacitors.
